ISO 4318:1989Published

Surface active agents and soaps — Determination of water content — Azeotropic distillation method

Agents de surface et savons — Détermination de la teneur en eau — Méthode par entraînement azéotropique

A new edition is under development: ISO/CD 4318.

Abstract / scope

The water in a test portion is removed by azeotropic destillation with boiling xylene or petroleum. The volume of the water collected is measured. The method is applicable to products in the form of powders having water contents greater than 5 % (m/m), and in the form of pastes ans solutions. It is not applicable to samples containing water-soluble volatile compounds, for example ethanol.

Life cycle

Replaces

ISO 4318:1978WithdrawnSurface active agents and soaps — Determination of water content — Azeotropic distillation methodInternational Standard · Published 1 Feb 1978 · ISO/TC 91

Replaced by

ISO/CD 4318Under developmentSurface active agents and soaps — Determination of water content — Azeotropic distillation methodInternational Standard · ISO/TC 91